import { AnchorProof, AnchorValidator, DiagnosticsLogger } from '@dustil/common';
export declare class EthereumAnchorValidator implements AnchorValidator {
    readonly ethereumRpcEndpoint: string;
    private _chainId;
    private readonly providersCache;
    private readonly _transactionCache;
    private readonly _blockCache;
    private readonly _logger;
    constructor(ethereumRpcEndpoint: string, logger: DiagnosticsLogger);
    init(chainId: string | null): Promise<void>;
    private _getTransaction;
    private _getTransactionAndBlockInfo;
    validateChainInclusion(anchorProof: AnchorProof): Promise<number>;
    private _getEthProvider;
}
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